Andre wrote:
Hello all,

I wonder if there are software that would calculate the rate of
precession as you move through time, forward and backward. For instance,
in about 12 000 years, Vega will be the north star. Are there software
that would determine accurately the movements of all stars.

Thanks

Andre

Slellarium is supposed to be OK for 100,000 years for precession but I
don't know about proper motion. It's free for PC and very cheap for phones
and tablets so why not just try it. There are reports on the net of
accurate depiction of Orion at the time the pyramids were built.